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Rio Tinto unveils its largest red diamond

Valentina Ruiz Leotaud | July 27, 2017 | 11:00 am Precious Metals Top Companies Australia Diamond Gold 

Rio Tinto’s Argyle mine, located in the remote East Kimberley region of Western Australia, produces enough gems to allow the company to host annual showcases of its rarest diamonds. This year, the first exhibition took place at a Chelsea skyscraper...

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